Left Ventricular Function and Surgical Treatment of Mitral Regurgitation

1985 ◽  
pp. 203-213
Author(s):  
M. E. Rothlin
Keyword(s):  
Surgical Treatment ◽  
Mitral Regurgitation ◽  
Left Ventricular Function ◽  
Ventricular Function ◽  
Left Ventricular

Surgery for Degenerative Mitral Regurgitation Valve Repair v. Valve Replacement with Chordal Preservation

1994 ◽  
Vol 2 (2) ◽  
pp. 90-94
Author(s):  
Masaharu Shigenobu ◽  
Shunji Sano
Keyword(s):  
Mitral Valve ◽  
Mitral Regurgitation ◽  
Left Ventricular Function ◽  
Ventricular Function ◽  
Valve Replacement ◽  
Mitral Valve Replacement ◽  
Mitral Valve Repair ◽  
Left Ventricular ◽  
Valve Repair ◽  
Repair Group

This study compares mitral valve repair and mitral valve replacement with chordal preservation for chronic mitral regurgitation due to myxomatous degeneration with special reference to left ventricular function. Twenty-six patients underwent complete preoperative and 2 years later postoperative echocardiography study. Thirteen patients underwent mitral valve replacement associated with preservation of chordae tendineae and papillary muscles, and 13 patients had mitral valve repair. There were no statistically significant differences between the 2 groups for clinical findings, hemodynamic profiles, or left ventricular function compared prior to surgery. After correcting mitral regurgitation, increase in cardiac index was significant for the repair group. Left ventricular end-diastolic volume decreased in both groups. Left ventricular end-systolic volume significantly decreased in the repair group, but remained unchanged in the replacement group. Both ejection fraction and mean left ventricular circumferential fiber shortening velocity (mVcf) decreased in the replacement group, but significantly increased in the repair group 2 years after surgery. These findings suggest valve replacement with chordal preservation shows less improvement in ventricular systolic function late after surgery compared with mitral valve repair.

scholarly journals Impact of Papillary Muscle Infarction on Ischemic Mitral Regurgitation Assessed by Magnetic Resonance Imaging

2017 ◽  
Vol 190 (01) ◽  
pp. 42-50 ◽  
Author(s):  
Christiane Bretschneider ◽  
Hannah-Klara Heinrich ◽  
Achim Seeger ◽  
Christof Burgstahler ◽  
Stephan Miller ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Mitral Regurgitation ◽  
Left Ventricular Function ◽  
Ventricular Function ◽  
Papillary Muscle ◽  
Left Ventricular ◽  
Ischemic Mitral Regurgitation ◽  
Chronic Myocardial Infarction ◽  
End Diastolic Volume ◽  
Significant Difference

Objective Ischemic mitral regurgitation is a predictor of heart failure resulting in increased mortality in patients with chronic myocardial infarction. It is uncertain whether the presence of papillary muscle (PM) infarction contributes to the development of mitral regurgitation in patients with chronic myocardial infarction (MI). The aim of the present study was to assess the correlation of PM infarction depicted by MRI with mitral regurgitation and left ventricular function. Methods and Materials 48 patients with chronic MI and recent MRI and echocardiography were retrospectively included. The location and extent of MI depicted by MRI were correlated with left ventricular function assessed by MRI and mitral regurgitation assessed by echocardiography. The presence, location and extent of PM infarction depicted by late gadolinium enhancement (LGE-) MRI were correlated with functional parameters and compared with patients with chronic MI but no PM involvement. Results PM infarction was found in 11 of 48 patients (23 %) using LGE-MRI. 8/11 patients (73 %) with PM infarction and 22/37 patients (59 %) without PM involvement in MI had ischemic mitral regurgitation. There was no significant difference between location, extent of MI and presence of mitral regurgitation between patients with and without PM involvement in myocardial infarction. In 4/4 patients with complete and in 4/7 patients with partial PM infarction, mitral regurgitation was present. The normalized mean left ventricular end-diastolic volume was increased in patients with ischemic mitral regurgitation. Conclusion The presence of PM infarction does not correlate with ischemic mitral regurgitation. In patients with complete PM infarction and consequent discontinuity of viable tissue in the PM-chorda-mitral valve complex, the probability of developing ischemic mitral regurgitation seems to be increased. However, the severity of mitral regurgitation is not increased compared to patients with partial or no PM infarction. Key points  Citation Format

Left ventricular function after mitral valve operation in congenital mitral regurgitation

2000 ◽  
Vol 30 (6) ◽  
pp. 737
Author(s):  
Young Min Eun ◽  
Jae Young Choi ◽  
Jong Kyun Lee ◽  
Jun Hee Sul ◽  
Seung Kyu Lee ◽  
...  
Keyword(s):  
Mitral Valve ◽  
Mitral Regurgitation ◽  
Left Ventricular Function ◽  
Ventricular Function ◽  
Left Ventricular ◽  
Mitral Valve Operation ◽  
Congenital Mitral Regurgitation ◽  
Valve Operation

Mitral valve repair: Conventional open techniques

2018 ◽  
pp. 135-144
Author(s):  
A. Marc Gillinov ◽  
Tomislav Mihaljevic
Keyword(s):  
Mitral Valve ◽  
Mitral Regurgitation ◽  
Left Ventricular Function ◽  
Ventricular Function ◽  
Mitral Valve Repair ◽  
Left Ventricular ◽  
Valve Repair ◽  
Younger Patients ◽  
Mechanical Prostheses ◽  
Surgical Option

Mitral valve repair is the preferred surgical option for nearly all patients with mitral regurgitation (MR) as its durability is widely recognized to be excellent. Advantages of mitral valve repair over mitral valve replacement include better preservation of left ventricular function, greater freedom from endocarditis and anticoagulant-related hemorrhage, and, in some cases, improved survival. Mitral valve repair has particular advantages in younger patients, who require lifelong anticoagulation if they receive mechanical prostheses. Mitral valve repair can be achieved in more than 90% of patients who have MR caused by prolapse. The forthcoming account includes an overview of the various techniques used in current practice.

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